A form of energy that is transferred by a difference in temperature.

• A. Light energy
• B. Kinetic energy
• C. Heat energy
• D. Sound energy

Answer: (C)

Heat energy is the energy transferred between objects because there is a difference in temperature. When one object is hotter, its particles have more kinetic energy, and energy flows to the cooler object until both reach the same temperature. This transfer can occur by contact (conduction), through a moving fluid (convection), or via radiation (waves of heat).

Light energy is energy carried by light waves and isn’t defined by temperature differences. Kinetic energy is the energy of motion within an object, describing its state rather than the transfer caused by temperature differences. Sound energy is energy carried by vibrating particles as sound waves, not specifically the transfer due to a temperature gradient.